• resonance and rotation numbers for planar hamiltonian systems: multiplicity results via the poincaré–birkhoff theorem

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 410
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
    in the general setting of a planar first order system u′ = g(t, u), u r2, (0.1) with g : [0, t ] × r2 → r2, we study the relationships between some classical nonresonance conditions (including the landesman–lazer one) — at infinity and, in the unforced case, i.e. g(t, 0) ≡ 0, at zero — and the rotation numbers of ‘‘large’’ and ‘‘small’’ solutions of (0.1), respectively. such estimates are then used to establish, via the poincaré–birkhoff fixed point theorem, new multiplicity results for t -periodic solutions of unforced planar hamiltonian systems ju′ = uh(t, u) and unforced undamped scalar second order equations x′′ + g(t, x) = 0. in particular, by means of the landesman–lazer condition, we obtain sharp conclusions when the system is resonant at infinity.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها